CN113775241B

CN113775241B - Anti-collision device for expressway reconstruction and expansion project and installation method thereof

Info

Publication number: CN113775241B
Application number: CN202111149391.XA
Authority: CN
Inventors: 薛松; 栾君华; 韩玲玉; 张涛
Original assignee: Shandong Taidong Highway Engineering Co ltd
Current assignee: Shandong Taidong Highway Engineering Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-09-06
Anticipated expiration: 2041-09-29
Also published as: CN113775241A

Abstract

The utility model relates to a highway extension project's technical field discloses an anti collision device for highway extension project, and it includes multiunit rail guard, the rail guard is including being used for the fixed establishment be connected with ground and being used for enclosing the guardrail body that keeps off to construction area, fixed establishment with the rail guard is connected, connects adjacent two be two on the guardrail body can dismantle fixed connection between the fixed establishment, fixed establishment include coupling assembling and be used for with this body coupling's of guardrail installed part, the installed part is rectangular frame structure, coupling assembling connects installed part length direction's one end, the installed part other end seted up be used for with the pin joint hole that coupling assembling connects, adjacent two the installed part passes through coupling assembling connects. This application has the advantage that improves the protective effect of rail guard to the construction area.

Description

Anti-collision device for expressway reconstruction and expansion project and installation method thereof

Technical Field

The application relates to the field of highway extension projects, in particular to an anti-collision device for a highway extension project and a construction method.

Background

Highways have been playing this important role in the development of national economy and society. As the first expressway in China is constructed and completed in 1988, the expressway is spread all over China, the number of expressway roads constructed in the early stage is small, and the widening and reconstruction of the existing expressway are necessary to meet the requirement of traffic volume increase in the areas; compared with reconstruction of highways, widening old roadbeds can fully utilize original roadbeds, shorten construction period and occupy less construction land, so that the original highways are usually expanded. When the highway is expanded, a guard rail is used to isolate a construction area in order to protect a running automobile and a constructor.

At present, in order to reduce the possibility of danger caused by the fact that a vehicle enters a construction area by mistake, a temporary guardrail is usually placed to enclose the construction area.

Aiming at the related technologies, the inventor thinks that the temporary guardrail is arranged to enclose a construction area, the tightness of the connection between the temporary guardrail and the ground is low, the impact force of a high-speed running automobile is very large, the temporary guardrail can not normally protect the automobile and reduce the impact force, and the defect of poor protection effect exists.

Disclosure of Invention

In order to alleviate the problem that interim guardrail is poor to the regional protective effect of construction, this application provides an anti-collision device for highway reconstruction and extension engineering.

The application provides a pair of buffer stop for highway reconstruction and extension project adopts following technical scheme:

the utility model provides a highway is buffer stop for reconstruction and extension engineering, includes multiunit rail guard, the rail guard is including being used for the fixed establishment who is connected with ground and being used for enclosing the guardrail body that keeps off to the construction region, fixed establishment with the rail guard is connected, connects adjacent two on the guardrail body two sets of can dismantle fixed connection between the fixed establishment, fixed establishment include coupling assembling and be used for with this body coupling's of guardrail installed part, the installed part is rectangle frame construction, coupling assembling connects mounting assembling length direction's one end, the installed part other end seted up be used for with the pin joint hole that coupling assembling connects, adjacent two the installed part passes through coupling assembling connects.

Through adopting above-mentioned technical scheme, with installed part and this body coupling of guardrail, the installed part of connection on two adjacent guardrail bodies passes through coupling assembling and connects to be in the same place two adjacent guardrail body couplings, improve the holistic stability of buffer stop, reduce the possibility that the rail guard fell down under the exogenic action, thereby improve buffer stop to the enclosure effect of construction area.

Optionally, the guardrail body includes guardrail frame, two supports and a plurality of buffering post, the guardrail frame is cuboid frame construction just the direction of height perpendicular to ground of guardrail frame, two support fixed connection is in the guardrail frame is close to the one end on ground, two the support is located respectively and is close to the position at guardrail frame length direction both ends, the support is the cuboid structure, the length direction perpendicular to of support the plane at guardrail frame length direction and direction of height place, the installed part cover is established the outside of guardrail frame, the installed part with the support butt, it is a plurality of the buffering post is all connected between the both sides frame on the guardrail frame direction of height.

By adopting the technical scheme, the lower end of the guardrail body is connected with the two supports, and the guardrail body is supported by the supports, so that the stability of the guardrail is improved; the mounting pieces are abutted against the two supports, and the mounting pieces are used for limiting the overturning of the supports, so that the stability of the guardrail body is further improved; the buffer columns are connected between the two side frames in the height direction of the guardrail frame, when a vehicle collides against the guardrail, the buffer columns are in contact with the vehicle, and the impact force applied to the guardrail by the vehicle is buffered by the buffer columns.

Optionally, the bumping post includes installation axle, sleeve pipe and sponge sheath, the installation axle with the guardrail frame is connected, the sleeve pipe box is established the installation axle outside, the sleeve pipe with the installation axle rotates to be connected, the sponge sheath cover is established on the sleeve pipe, the sponge sheath with sleeve pipe fixed connection.

Through adopting above-mentioned technical scheme, the sleeve pipe rotates to be connected in the installation epaxial, and sponge sheath fixed connection utilizes the sponge sheath to cushion the impact force of car in the sheathed tube outside, and when the automobile body contacted with the cushion column, the sleeve pipe installation axle rotates relatively to the impact force to the automobile body leads, further reduces the impact force of car to buffer stop.

Optionally, a plurality of mounting grooves have all been seted up to the one side that both sides frame in the guardrail frame direction of height is close to each other, install a length direction's both ends and all wear to establish in the mounting groove, a plurality of first springs of equal fixedly connected with on the lateral wall at installation axle length direction both ends, it is a plurality of first spring is followed the equidistant setting of circumference of installation axle, first spring is kept away from the one end of installation axle with the inner wall fixed connection of mounting groove.

Through adopting above-mentioned technical scheme, the installation axle is connected with the guardrail frame through a plurality of springs, and when the buffering post received outside impact force, the installation axle can remove in the mounting groove, utilizes a plurality of first springs to cushion the impact force that the buffering post received.

Optionally, coupling assembling includes the pin and connects pole, pivot, first carousel and second carousel, first carousel with the coaxial setting of second carousel, the axis of rotation perpendicular to ground of first carousel, first carousel is located one side that the second carousel is close to ground, the pivot with first carousel coaxial coupling, the second carousel cover is established in the pivot and with pivot sliding connection, first carousel with installed part fixed connection, the pin connects the pole to run through the second carousel is close to and keeps away from the both ends face of ground one side, the pin connect the pole with second carousel sliding connection, the slip direction of pin connect the pole with the axis of first carousel is parallel.

Through adopting above-mentioned technical scheme, the one end of seting up the round pin hole with the installed part inserts between first carousel and the second carousel of adjacent coupling assembling, insert the round pin pole on the second carousel and insert and set up in the round pin joint hole on the installed part and make installed part and second carousel relatively fixed, adjacent two installed parts one with first carousel fixed connection, another and second carousel fixed connection, first carousel can rotate relatively with the second carousel, thereby make the angle between two rail guards adjustable, improve the convenience that buffer stop used.

Optionally, one end of the pin joint rod, which is far away from the ground, is fixedly connected with a limiting block, a second spring is sleeved on the pin joint rod, the second spring is located between the first rotary table and the limiting block, and one end of the pin joint rod, which is close to the ground when not subjected to external force, is abutted against the second rotary table.

Through adopting above-mentioned technical scheme, utilize the second spring to connect the ascending removal of pole vertical direction to the round pin and restrict, improve round pin and connect pole and the stability of pin joint hole complex.

Optionally, the pivot is the threaded rod, the pivot with first carousel fixed connection, pivot threaded connection has the locking piece, the locking piece is located the second carousel is kept away from one side of first carousel.

Through adopting above-mentioned technical scheme, the back is accomplished in the angle modulation between two rail guards, rotates the locking piece and makes its and second carousel butt, continues to rotate the locking piece and makes second carousel and two installed parts support tightly to the relative rotation between first carousel of restriction and the second carousel, thereby makes the angle between two rail guards fixed, improves the stability of buffer stop during operation.

Optionally, the pivot is connected with anchor mechanism, anchor mechanism includes head rod, second connecting rod and anchor rod, head rod one end with pivot threaded connection, the second connecting rod articulates the head rod is kept away from the one end of pivot, the anchor rod cover is established the second connecting rod is kept away from the one end of head rod, the second connecting rod with anchor rod threaded connection.

Through adopting above-mentioned technical scheme, connect anchoring mechanism in the pivot, rotate the anchor pole and make it insert and offer in the anchor hole on the road surface, improve the compactness of being connected between buffer stop and the ground.

In order to alleviate the problem that the protective effect of the temporary guardrail on the construction area is poor, the application provides an installation method of an anti-collision device for a highway reconstruction and extension project, which mainly comprises the following steps:

step S1: enclosing: placing the guard rails at working positions in sequence, and enclosing a construction area by using the guard rails:

step S2: connecting: inserting one end of the mounting piece provided with the pin connecting hole into a position between a first rotary table and a second rotary table of the adjacent connecting assembly, and inserting a pin connecting rod on the second rotary table into the pin connecting hole on the mounting piece;

step S3: fixing: rotating the locking block to enable the locking block to be tightly attached to the second rotary table, so that the second rotary table is abutted to the two mounting pieces;

step S4: anchoring: and (4) arranging an anchor hole on the ground, rotating the anchor rod to enable the anchor rod to enter the anchor hole, filling soil into the anchor hole and compacting.

By adopting the technical scheme, the mounting pieces mounted on the two adjacent guardrail bodies are connected by the connecting component, so that the two adjacent guardrail bodies are connected together, and the overall stability of the anti-collision device is improved; the anchoring mechanism is connected to the rotating shaft, and the anchoring rod is rotated to be inserted into an anchoring hole formed in the road surface, so that the connection tightness between the anti-collision device and the ground is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

the guardrail bodies are connected together by utilizing the plurality of groups of fixing mechanisms, so that the overall stability of the anti-collision device is improved, the possibility that the guard rail falls under the action of external force is reduced, and the enclosure effect of the anti-collision device on a construction area is improved;

the sleeve is rotatably connected to the outer side of the mounting shaft, the sponge sheath is fixedly connected to the outer side of the sleeve, impact force of an automobile is buffered by the sponge sheath, and when the automobile body is in contact with the buffer column, the sleeve can rotate relative to the mounting shaft, so that the impact force of the automobile body is guided, and the impact force of the automobile on the anti-collision device is further reduced;

the anchoring mechanism is connected to the rotating shaft, and the anchoring rod is rotated to be inserted into an anchoring hole formed in the road surface, so that the connection tightness between the anti-collision device and the ground is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

fig. 2 is a schematic view showing a structure of a guard rail portion in an embodiment of the present application;

FIG. 3 is a schematic structural view of a fixing mechanism portion in an embodiment of the present application;

fig. 4 is a flowchart of an installation method in an embodiment of the present application.

Reference numerals are as follows: 100. protecting the fence; 200. a fixing mechanism; 210. a connecting assembly; 211. a pin-connecting rod; 212. a rotating shaft; 213. a first turntable; 214. a second turntable; 215. a limiting block; 216. a second spring; 217. a locking block; 220. a mounting member; 221. a pin-connecting hole; 300. a guardrail body; 310. a guardrail frame; 311. mounting grooves; 320. a support; 330. a buffer column; 331. installing a shaft; 332. a sleeve; 333. a sponge sheath; 334. a first spring; 400. an anchoring mechanism; 410. a first connecting rod; 420. a second connecting rod; 430. and (4) anchoring the rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses an anti-collision device for a highway reconstruction and extension project and a construction method. Referring to fig. 1 and 2, the collision prevention device for the expressway reconstruction and extension project comprises three groups of protective railings 100, and the three groups of protective railings 100 are used for enclosing a construction area of the extension project. The guardrail 100 comprises guardrail bodies 300 for enclosing a construction area, the guardrail bodies 300 are provided with fixing mechanisms 200, and after the guardrail bodies 300 are placed at working positions, the two adjacent guardrail bodies 300 are connected together through the fixing mechanisms 200 arranged on the guardrail bodies 300, so that the overall stability of the anti-collision device is improved, and the possibility that the guardrail 100 falls down under the action of external force is reduced. The fixing mechanism 200 is provided with an anchoring mechanism 400, and the guard rail 100 is connected to the ground by using the anchoring mechanism 400, thereby improving the connection tightness between the guard rail 100 and the ground.

Referring to fig. 1 and 2, the guardrail body 300 includes a guardrail frame 310, the guardrail frame 310 is a rectangular parallelepiped frame structure, and a height direction of the guardrail frame 310 is perpendicular to the ground. The guardrail frame 310 is fixedly connected with two supports 320 at the lower end thereof, and the two supports 320 are respectively located at the positions close to the two ends of the guardrail frame 310 in the length direction. The support 320 is a cuboid structure, and the length direction of the support 320 is perpendicular to the plane of the length direction and the height direction of the guardrail frame 310. The two supports 320 are connected to the lower portion of the guard rail frame 310, and the guard rail frame 310 is supported by the supports 320, so that the capability of the guard rail body 300 to bear external impact is improved, and the stability of the guard rail 100 is improved.

Referring to fig. 1 and 2, a plurality of cushion columns 330 are installed between the upper and lower end frames of the balustrade frame 310. Buffer column 330 includes installation axle 331, a plurality of mounting grooves 311 have all been seted up to the both sides frame that guardrail frame 310 upper end and lower extreme are close to one side each other, set up mounting groove 311 at guardrail frame 310 upper end frame and set up at guardrail frame 310 lower extreme frame's mounting groove 311 one-to-one, the axis collineation of two mounting grooves 311 that correspond the setting, the axis of mounting groove 311 is parallel with guardrail frame 310's direction of height, a plurality of mounting grooves 311 set up along the equidistant interval of guardrail frame 310's length direction, the axis of installation axle 331 is parallel with guardrail frame 310's direction of height, peg graft respectively in two mounting grooves 311 that correspond the setting at installation axle 331 both ends. The equal fixedly connected with a plurality of first springs 334 in the position that is close to its length direction both ends on the installation axle 331 lateral wall, a plurality of first springs 334 set up along the circumference of installation axle 331 at equal intervals, and the one end that first spring 334 kept away from pivot 212 and the inner wall fixed connection of mounting groove 311.

The mounting shaft 331 is sleeved with a sleeve 332, and the sleeve 332 is coaxially and rotatably connected with the mounting shaft 331. The outer side of the sleeve 332 is sleeved with a sponge sheath 333, and the sponge sheath 333 is fixedly connected with the sleeve 332. When a vehicle collides with the guard rail 100, the buffer post 330 collides with the vehicle body, the impact force of the vehicle is buffered by the sponge sheath 333, and when the vehicle body contacts with the buffer post 330, the sleeve 332 can rotate relative to the mounting shaft 331, so that the impact force of the vehicle body is guided, and the impact force of the vehicle on the anti-collision device is reduced. Meanwhile, when the damping post 330 is subjected to an external impact force, the mounting shaft 331 can move in the mounting groove 311, and the impact force applied to the damping post 330 is further damped by the plurality of first springs 334.

Referring to fig. 1 and 2, the fixing mechanism 200 includes a mounting member 220, the mounting member 220 is a rectangular frame structure, the mounting member 220 is sleeved outside the guardrail frame 310, the mounting member 220 is slidably connected to the guardrail body 300, the mounting member 220 is located above the two supports 320, the mounting member 220 abuts against the supports 320, and the length direction of the mounting member 220 is parallel to the length direction of the guardrail frame 310.

Referring to fig. 2 and 3, a connecting assembly 210 is connected to one end of the mounting member 220 in the length direction, the connecting assembly 210 includes a first rotating disc 213 fixedly connected to the mounting member 220, and the rotation axis of the first rotating disc 213 is vertically arranged. The rotating shaft 212 is vertically and fixedly connected to the upper portion of the first rotating disc 213, the rotating shaft 212 and the first rotating disc 213 are coaxially arranged, the second rotating disc 214 is coaxially sleeved on the rotating shaft 212, the inner wall of a central hole of the second rotating disc 214 is abutted to the rotating shaft 212, and one end, connected with the first rotating disc 213, of the mounting part 220 is located between the first rotating disc 213 and the second rotating disc 214.

Referring to fig. 2 and 3, a pin connection rod 211 is inserted through the second rotary plate 214, the pin connection rod 211 penetrates through the upper end surface and the lower end surface of the second rotary plate 214, the pin connection rod 211 is slidably connected with the second rotary plate 214, and the pin connection rod 211 moves in a direction approaching or departing from the ground. The pin connects pole 211 upper end fixedly connected with stopper 215, and the cover is equipped with second spring 216 on the pin connects pole 211, and second spring 216 is located second carousel 214 top, second spring 216 one end and stopper 215 fixed connection, the second spring 216 other end and second carousel 214 fixed connection, and pin connects pole 211 when not receiving the exogenic action, and pin connects pole 211 lower extreme and first carousel 213 butt.

One end of the mounting member 220, which is far away from the connecting assembly 210, is provided with a pin connecting hole 221 for inserting the pin connecting rod 211, one end of the mounting member 220, which is provided with the pin connecting hole 221, is inserted between the first rotating disc 213 and the second rotating disc 214 of the adjacent connecting assembly 210, the pin connecting rod 211 on the second rotating disc 214 is inserted into the pin connecting hole 221 formed in the mounting member 220, and the pin connecting rod 211 is used for limiting the movement of the mounting member 220, so that the connection of the two adjacent protective fences 100 is realized. The first rotating disc 213 and the second rotating disc 214 can rotate relatively, so that the angle between the two guard rails 100 can be adjusted, and the convenience of using the anti-collision device is improved.

Referring to fig. 2 and 3, the rotating shaft 212 is a threaded rod, and a locking block 217 is screwed on the rotating shaft 212, and the locking block 217 is located on the side of the second rotating disc 214 away from the first rotating disc 213. After the angle between the two guard railings 100 is adjusted, the locking block 217 is rotated to abut against the second rotary table 214, and the locking block 217 is continuously rotated to abut against the second rotary table 214 and the two mounting pieces 220, so that the relative rotation between the first rotary table 213 and the second rotary table 214 is limited, the angle between the two guard railings 100 is fixed, and the stability of the anti-collision device during operation is improved.

Referring to fig. 1 and 2, the anchoring mechanism 400 includes a first connecting rod 410, a length direction of the first connecting rod 410 is perpendicular to a length direction of the rotating shaft 212, one end of the first connecting rod 410 is connected to the rotating shaft 212 in a threaded manner, one end of the first connecting rod 410 away from the rotating shaft 212 is hinged to a second connecting rod 420, and one end of the second connecting rod 420 away from the first connecting rod 410 is connected to an anchoring rod 430 in a threaded manner. After the two adjacent protective railings 100 are connected, the anchoring rods 430 are rotated to be inserted into the anchoring holes formed in the road surface, so that the connection tightness between the anti-collision device and the ground is improved.

The implementation principle of the anti-collision device for the expressway reconstruction and extension project in the embodiment of the application is as follows: by connecting two adjacent guardrail bodies 300 together by using the fixing mechanism 200 installed on the guardrail bodies 300, the overall stability of the anti-collision device is improved, and the possibility that the guardrail 100 falls down under the action of external force is reduced. The fixing mechanism 200 is connected with the road surface through the anchoring mechanism 400, so that the overall impact resistance of the anti-collision device is improved, and the enclosure effect of the anti-collision device on a construction area is improved.

The embodiment of the application also discloses an installation method of the anti-collision device for the expressway reconstruction and extension project, which mainly comprises the following steps:

referring to fig. 1 and 4, step S1: enclosing: the guard rails 100 are sequentially placed at working positions, the guard rails 100 are used for enclosing a construction area, and the possibility that vehicles are dangerous due to mistaken entering of the vehicles into the construction area is reduced;

referring to fig. 3 and 4, step S2: connecting: connecting the fixing mechanisms 200 on two adjacent guard rails 100, wherein when connecting, one end of the mounting member 220 provided with the pin connecting hole 221 is inserted between the first turntable 213 and the second turntable 214 of the adjacent connecting assembly 210, and the pin connecting rod 211 on the second turntable 214 is inserted into the pin connecting hole 221 arranged on the mounting member 220, so that the mounting member 220 and the second turntable 214 are relatively fixed, thereby realizing the connection of the two mounting members 220;

step S3: fixing: after the angle between the two guard rails 100 is adjusted, the locking block 217 is rotated to abut against the second rotary table 214, and the locking block 217 is continuously rotated to abut against the second rotary table 214 and the two mounting pieces 220, so that the relative rotation between the first rotary table 213 and the second rotary table 214 is limited, the angle between the two guard rails 100 is fixed, and the stability of the anti-collision device during operation is improved;

referring to fig. 2 and 4, step S4: anchoring: the anchor hole is formed in the road surface, the anchor rod 430 is rotated to enter the anchor hole, soil is filled into the anchor hole and tamped, and the stability of connection between the anti-collision device and the road surface is improved, so that the impact force resistance capability of the anti-collision device is improved.

The implementation principle of the installation method of the municipal engineering safety protection device in the embodiment of the application is as follows: two groups of fixing mechanisms 200 arranged on two adjacent groups of guardrail bodies 300 are connected together, so that two adjacent groups of guardrails 100 are connected, and the overall stability of the anti-collision device is improved; the guard rail 100 is connected with the road surface through the anchoring mechanism 400, and the anchor holes are filled with soil and tamped, so that the connection tightness between the anti-collision device and the ground is improved, the impact resistance capability of the anti-collision device is improved, and the guard effect of the anti-collision device on the construction area is improved.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a highway is anti-collision device for reconstruction and extension project which characterized in that: comprises a plurality of groups of protective railings (100), wherein each protective railing (100) comprises a fixing mechanism (200) connected with the ground and a guardrail body (300) used for enclosing a construction area, the fixing mechanisms (200) are connected with the guard rails (100), two groups of fixing mechanisms (200) connected to two adjacent guard rail bodies (300) are detachably and fixedly connected, the fixing mechanism (200) comprises a connecting component (210) and a mounting component (220) used for being connected with the guardrail body (300), the mounting part (220) is a rectangular frame structure, the connecting component (210) is connected to one end of the mounting part (220) in the length direction, the other end of the mounting piece (220) is provided with a pin connecting hole (221) used for being connected with the connecting assembly (210), and two adjacent mounting pieces (220) are connected through the connecting assembly (210);

the guardrail body (300) comprises a guardrail frame (310), two supports (320) and a plurality of buffer columns (330), the guardrail frame (310) is of a cuboid frame structure, the height direction of the guardrail frame (310) is perpendicular to the ground, the two supports (320) are fixedly connected to one end, close to the ground, of the guardrail frame (310), the two supports (320) are respectively located at two ends, close to the length direction of the guardrail frame (310), the support (320) is of a cuboid structure, the length direction of the support (320) is perpendicular to the plane where the length direction and the height direction of the guardrail frame (310) are located, the mounting piece (220) is sleeved on the outer side of the guardrail frame (310), the mounting piece (220) is abutted against the support (320), and the plurality of buffer columns (330) are connected between two frames in the height direction of the guardrail frame (310);

the buffer column (330) comprises a mounting shaft (331), a sleeve (332) and a sponge sheath (333), the mounting shaft (331) is connected with the guardrail frame (310), the sleeve (332) is sleeved on the outer side of the mounting shaft (331), the sleeve (332) is rotatably connected with the mounting shaft (331), the sponge sheath (333) is sleeved on the sleeve (332), and the sponge sheath (333) is fixedly connected with the sleeve (332);

a plurality of mounting grooves (311) are formed in one side, close to each other, of two side frames in the height direction of the guardrail frame (310), two ends of the mounting shaft (331) in the length direction penetrate through the mounting grooves (311), a plurality of first springs (334) are fixedly connected to side walls of two ends of the mounting shaft (331) in the length direction, the first springs (334) are arranged at equal intervals along the circumferential direction of the mounting shaft (331), and one end, far away from the mounting shaft (331), of each first spring (334) is fixedly connected with the inner wall of each mounting groove (311);

the connecting component (210) comprises a pin rod (211), a rotating shaft (212), a first rotating disc (213) and a second rotating disc (214), the first rotating disc (213) and the second rotating disc (214) are coaxially arranged, the rotating axis of the first rotating disc (213) is vertical to the ground, the first rotary table (213) is positioned on one side of the second rotary table (214) close to the ground, the rotating shaft (212) is coaxially connected with the first rotating disc (213), the second rotating disc (214) is sleeved on the rotating shaft (212) and is in sliding connection with the rotating shaft (212), the first rotary disc (213) is fixedly connected with the mounting part (220), the pin connecting rod (211) penetrates through two end faces of one side, close to the ground and far away from the ground, of the second rotary disc (214), the pin connecting rod (211) is connected with the second rotary disc (214) in a sliding mode, and the sliding direction of the pin connecting rod (211) is parallel to the axis of the first rotary disc (213).

2. The anti-collision device for the expressway rebuilding and expanding project according to claim 1, wherein: the one end fixedly connected with stopper (215) that ground was kept away from to round pin pole (211), the cover is equipped with second spring (216) on round pin pole (211), second spring (216) are located second carousel (214) with between stopper (215), round pin pole (211) when not receiving external force be close to ground one end with second carousel (214) butt.

3. The anti-collision device for the expressway reconstruction and expansion project according to claim 2, wherein: pivot (212) are the threaded rod, pivot (212) with first carousel (213) fixed connection, pivot (212) threaded connection has locking block (217), locking block (217) are located second carousel (214) is kept away from one side of first carousel (213).

4. The anti-collision device for the expressway rebuilding and expanding project according to claim 3, wherein: pivot (212) are connected with anchor mechanism (400), anchor mechanism (400) include head rod (410), second connecting rod (420) and anchor rod (430), head rod (410) one end with pivot (212) threaded connection, second connecting rod (420) articulate head rod (410) is kept away from the one end of pivot (212), anchor rod (430) cover is established second connecting rod (420) is kept away from the one end of head rod (410), second connecting rod (420) with anchor rod (430) threaded connection.

5. The method for installing the anti-collision device for the highway reconstruction and extension project according to claim 4, which is characterized in that:

step S1: enclosing: sequentially placing guard rails (100) at a working position, and enclosing a construction area by using the guard rails (100):

step S2: connecting: inserting one end, provided with a pin connecting hole (221), of the mounting piece (220) between a first rotary disc (213) and a second rotary disc (214) of an adjacent connecting assembly (210), and inserting a pin connecting rod (211) on the second rotary disc (214) into the pin connecting hole (221) formed in the mounting piece (220);

step S3: fixing: rotating the locking block (217) to enable the locking block (217) to be tightly attached to the second rotary disc (214), so that the second rotary disc (214) is abutted to the two mounting pieces (220);

step S4: anchoring: and (3) arranging an anchor hole on the ground, rotating the anchor rod (430) to enable the anchor rod to enter the anchor hole, filling soil into the anchor hole and tamping.